Exam 15: Advanced Gui Topics

Describe the purpose of an accelerator. Provide an example of an accelerator

Write the statement to establish a GridLayout with three horizontal rows and six vertical columns in a Container named myGrid .

The FlowLayout class contains three constants you can use to align Component s with a ____ .

The above figure shows a JFrame with a horizontal JMenuBar named myMenu that holds two JMenu s: menu1 and menu2 . A submenu and JMenuItem s also exist with the Colors yellows , blues , and greens . Using the add() method, write the statements to add the JMenu s to the JMenuBar , and write the statements to add a submenu and JMenuItem s to the Colors menu.

Write the statement that will provide a shortcut menu key for a menu named myShortcutMenu . When a user presses Alt+F on the keyboard, the statement will set the F in File (shown in the above figure) as the mnemonic.

An additional layered pane exists above the root pane, but it is not often used explicitly by Java programmers.

When components in a Swing UI require more display area than they have been allocated, you can use a ____ container to hold the components and allow the user to display the components using scroll bars.

How would you arrange columns into equal rows and columns? Provide an example.

If you wanted to see the x-coordinate of a user click, you would use the ____ method of the MouseEvent class.

With ____, a redrawn JPanel is displayed only when it is complete; this provides the viewer with updated screens that do not flicker while being redrawn.

How do you find the red, green, and blue components of a color?

Describe the way in which components expand to fill their layout areas in FlowLayout and BorderLayout .

To force the display of a scroll bar, you can use class variables defined in the ScrollPaneConstants class. What are they?

The JMenu s are added to the JMenuBar using the ____ method.

Use the ____ layout manager when you add components to a maximum of five sections.

Write the statement to set the background color of a button named goBtn to a color of green.

When you use BorderLayout , you are required to add components into each of the five regions.

What are the four methods defined in the Component class for adding event listeners?

What is a mnemonic? Provide an example of adding a mnemonic.

A(n) ____________________ is a plain, borderless surface that can hold lightweight GUI components.